Global warming is caused by the greenhouse effect.
The outline of the earth traps gas and that's how heat is made.
Our problemo here folks is that there is to much gas being trapped and that means that it is gonna be to hot.
The result is that the earth is gonna be to hot to maintain life on this planet and if we find a way to remove this outline it would be a bad thing because we would not be able to breath because all of our oxygen is gonna escape.